Line data    Source code

       1             : #include "fd_borrowed_account.h"
       2             : 
       3             : int
       4             : fd_borrowed_account_get_data_mut( fd_borrowed_account_t * borrowed_acct,
       5             :                                   uchar * *               data_out,
       6           0 :                                   ulong *                 dlen_out ) {
       7           0 :   fd_txn_account_t * acct = borrowed_acct->acct;
       8             : 
       9             :   /* https://github.com/anza-xyz/agave/blob/v2.1.14/sdk/src/transaction_context.rs#L824 */
      10           0 :   int err;
      11           0 :   fd_borrowed_account_can_data_be_changed( borrowed_acct, &err );
      12           0 :   if( FD_UNLIKELY( err ) ) {
      13           0 :     return err;
      14           0 :   }
      15             : 
      16           0 :   if ( data_out != NULL )
      17           0 :     *data_out = acct->data;
      18           0 :   if ( dlen_out != NULL )
      19           0 :     *dlen_out = acct->meta->dlen;
      20             : 
      21           0 :   return FD_EXECUTOR_INSTR_SUCCESS;
      22           0 : }
      23             : 
      24             : int
      25             : fd_borrowed_account_set_owner( fd_borrowed_account_t * borrowed_acct,
      26           0 :                                fd_pubkey_t const *     owner ) {
      27           0 :   fd_txn_account_t * acct = borrowed_acct->acct;
      28             : 
      29             :   /* Only the owner can assign a new owner
      30             :      https://github.com/anza-xyz/agave/blob/v2.1.14/sdk/src/transaction_context.rs#L741 */
      31           0 :   if( FD_UNLIKELY( !fd_borrowed_account_is_owned_by_current_program( borrowed_acct ) ) ) {
      32           0 :     return FD_EXECUTOR_INSTR_ERR_MODIFIED_PROGRAM_ID;
      33           0 :   }
      34             : 
      35             :   /* And only if the account is writable
      36             :      https://github.com/anza-xyz/agave/blob/v2.1.14/sdk/src/transaction_context.rs#L745 */
      37           0 :   if( FD_UNLIKELY( !fd_borrowed_account_is_writable( borrowed_acct ) ) ) {
      38           0 :     return FD_EXECUTOR_INSTR_ERR_MODIFIED_PROGRAM_ID;
      39           0 :   }
      40             : 
      41             :   /* And only if the account is not executable
      42             :      https://github.com/anza-xyz/agave/blob/v2.1.14/sdk/src/transaction_context.rs#L749 */
      43           0 :   if( FD_UNLIKELY( fd_borrowed_account_is_executable_internal( borrowed_acct ) ) ) {
      44           0 :     return FD_EXECUTOR_INSTR_ERR_MODIFIED_PROGRAM_ID;
      45           0 :   }
      46             : 
      47             :   /* And only if the data is zero-initialized or empty
      48             :      https://github.com/anza-xyz/agave/blob/v2.1.14/sdk/src/transaction_context.rs#L753 */
      49           0 :   if( FD_UNLIKELY( !fd_borrowed_account_is_zeroed( borrowed_acct ) ) ) {
      50           0 :     return FD_EXECUTOR_INSTR_ERR_MODIFIED_PROGRAM_ID;
      51           0 :   }
      52             : 
      53             :   /* Don't copy the account if the owner does not change
      54             :      https://github.com/anza-xyz/agave/blob/v2.1.14/sdk/src/transaction_context.rs#L757 */
      55           0 :   if( !memcmp( acct->const_meta->info.owner, owner, sizeof( fd_pubkey_t ) ) ) {
      56           0 :     return FD_EXECUTOR_INSTR_SUCCESS;
      57           0 :   }
      58             : 
      59             :   /* Agave self.touch() is a no-op */
      60             : 
      61             :   /* Copy into owner
      62             :      https://github.com/anza-xyz/agave/blob/v2.1.14/sdk/src/transaction_context.rs#L761 */
      63           0 :   memcpy( acct->meta->info.owner, owner, sizeof(fd_pubkey_t) );
      64           0 :   return FD_EXECUTOR_INSTR_SUCCESS;
      65           0 : }
      66             : 
      67             : /* Overwrites the number of lamports of this account (transaction wide)
      68             :    https://github.com/anza-xyz/agave/blob/v2.1.14/sdk/src/transaction_context.rs#L773 */
      69             : int
      70             : fd_borrowed_account_set_lamports( fd_borrowed_account_t * borrowed_acct,
      71           0 :                                   ulong                   lamports ) {
      72           0 :   fd_txn_account_t * acct = borrowed_acct->acct;
      73             : 
      74             :   /* An account not owned by the program cannot have its blanace decrease
      75             :      https://github.com/anza-xyz/agave/blob/v2.1.14/sdk/src/transaction_context.rs#L775 */
      76           0 :   if( FD_UNLIKELY( ( !fd_borrowed_account_is_owned_by_current_program( borrowed_acct ) ) &&
      77           0 :                    ( lamports < acct->const_meta->info.lamports ) ) ) {
      78           0 :     return FD_EXECUTOR_INSTR_ERR_EXTERNAL_ACCOUNT_LAMPORT_SPEND;
      79           0 :   }
      80             : 
      81             :   /* The balance of read-only may not change
      82             :      https://github.com/anza-xyz/agave/blob/v2.1.14/sdk/src/transaction_context.rs#L779 */
      83           0 :   if( FD_UNLIKELY( !fd_borrowed_account_is_writable( borrowed_acct ) ) ) {
      84           0 :     return FD_EXECUTOR_INSTR_ERR_READONLY_LAMPORT_CHANGE;
      85           0 :   }
      86             : 
      87             :   /* The balance of executable accounts may not change
      88             :      https://github.com/anza-xyz/agave/blob/v2.1.14/sdk/src/transaction_context.rs#L783 */
      89           0 :   if( FD_UNLIKELY( fd_borrowed_account_is_executable_internal( borrowed_acct ) ) ) {
      90           0 :     return FD_EXECUTOR_INSTR_ERR_EXECUTABLE_LAMPORT_CHANGE;
      91           0 :   }
      92             : 
      93             :   /* Don't copy the account if the lamports do not change
      94             :      https://github.com/anza-xyz/agave/blob/v2.1.14/sdk/src/transaction_context.rs#L787 */
      95           0 :   if( fd_txn_account_get_lamports( acct ) == lamports ) {
      96           0 :     return FD_EXECUTOR_INSTR_SUCCESS;
      97           0 :   }
      98             : 
      99             :   /* Agave self.touch() is a no-op */
     100             : 
     101           0 :   fd_txn_account_set_lamports( acct, lamports );
     102           0 :   return FD_EXECUTOR_INSTR_SUCCESS;
     103           0 : }
     104             : 
     105             : int
     106             : fd_borrowed_account_set_data_from_slice( fd_borrowed_account_t * borrowed_acct,
     107             :                                          uchar const *           data,
     108           0 :                                          ulong                   data_sz ) {
     109           0 :   fd_txn_account_t * acct = borrowed_acct->acct;
     110             : 
     111             :   /* https://github.com/anza-xyz/agave/blob/v2.1.14/sdk/src/transaction_context.rs#L865 */
     112           0 :   int err;
     113           0 :   if ( FD_UNLIKELY( !fd_borrowed_account_can_data_be_resized( borrowed_acct, data_sz, &err ) ) ) {
     114           0 :     return err;
     115           0 :   }
     116             : 
     117             :   /* https://github.com/anza-xyz/agave/blob/v2.1.14/sdk/src/transaction_context.rs#L866 */
     118           0 :   if( FD_UNLIKELY( !fd_borrowed_account_can_data_be_changed( borrowed_acct, &err ) ) ) {
     119           0 :     return err;
     120           0 :   }
     121             : 
     122             :   /* Agave self.touch() is a no-op */
     123             : 
     124             :   /* https://github.com/anza-xyz/agave/blob/v2.1.14/sdk/src/transaction_context.rs#L868 */
     125           0 :   if( FD_UNLIKELY( !fd_borrowed_account_update_accounts_resize_delta( borrowed_acct, data_sz, &err ) ) ) {
     126           0 :     return err;
     127           0 :   }
     128             : 
     129             :   /* AccountSharedData::set_data_from_slice() */
     130           0 :   acct->meta->dlen = data_sz;
     131           0 :   fd_memcpy( acct->data, data, data_sz );
     132             : 
     133           0 :   return FD_EXECUTOR_INSTR_SUCCESS;
     134           0 : }
     135             : 
     136             : int
     137             : fd_borrowed_account_set_data_length( fd_borrowed_account_t * borrowed_acct,
     138           0 :                                      ulong                   new_len ) {
     139           0 :   fd_txn_account_t * acct = borrowed_acct->acct;
     140           0 :   int                err  = FD_EXECUTOR_INSTR_SUCCESS;
     141             : 
     142             :   /* https://github.com/anza-xyz/agave/blob/v2.1.14/sdk/src/transaction_context.rs#L883 */
     143           0 :   if( FD_UNLIKELY( !fd_borrowed_account_can_data_be_resized( borrowed_acct, new_len, &err ) ) ) {
     144           0 :     return err;
     145           0 :   }
     146             : 
     147             :   /* https://github.com/anza-xyz/agave/blob/v2.1.14/sdk/src/transaction_context.rs#L884 */
     148           0 :   if( FD_UNLIKELY( !fd_borrowed_account_can_data_be_changed( borrowed_acct, &err ) ) ) {
     149           0 :     return err;
     150           0 :   }
     151             : 
     152           0 :   ulong old_len = acct->const_meta->dlen;
     153             : 
     154             :   /* Don't copy the account if the length does not change
     155             :      https://github.com/anza-xyz/agave/blob/v2.1.14/sdk/src/transaction_context.rs#L886 */
     156           0 :   if( old_len==new_len ) {
     157           0 :     return FD_EXECUTOR_INSTR_SUCCESS;
     158           0 :   }
     159             : 
     160             :   /* Agave self.touch() is a no-op */
     161             : 
     162             :   /* https://github.com/anza-xyz/agave/blob/v2.1.14/sdk/src/transaction_context.rs#L890 */
     163           0 :   if( FD_UNLIKELY( !fd_borrowed_account_update_accounts_resize_delta( borrowed_acct, new_len, &err ) ) ) {
     164           0 :     return err;
     165           0 :   }
     166             : 
     167             :   /* Resize the account
     168             :      https://github.com/anza-xyz/agave/blob/v2.1.14/sdk/src/transaction_context.rs#L891 */
     169           0 :   fd_txn_account_resize( acct, new_len );
     170           0 :   return FD_EXECUTOR_INSTR_SUCCESS;
     171           0 : }
     172             : 
     173             : int
     174             : fd_borrowed_account_set_executable( fd_borrowed_account_t * borrowed_acct,
     175           0 :                                     int                     is_executable ) {
     176           0 :   fd_txn_account_t * acct = borrowed_acct->acct;
     177             : 
     178             :   /* To become executable an account must be rent exempt
     179             :      https://github.com/anza-xyz/agave/blob/v2.1.14/sdk/src/transaction_context.rs#L1003-L1006 */
     180           0 :   fd_rent_t const * rent = &borrowed_acct->instr_ctx->txn_ctx->rent;
     181           0 :   if( FD_UNLIKELY( acct->const_meta->info.lamports < fd_rent_exempt_minimum_balance( rent, acct->const_meta->dlen ) ) ) {
     182           0 :     return FD_EXECUTOR_INSTR_ERR_EXECUTABLE_ACCOUNT_NOT_RENT_EXEMPT;
     183           0 :   }
     184             : 
     185             :   /* Only the owner can set the exectuable flag
     186             :      https://github.com/anza-xyz/agave/blob/v2.1.14/sdk/src/transaction_context.rs#L1011 */
     187           0 :   if( FD_UNLIKELY( !fd_borrowed_account_is_owned_by_current_program( borrowed_acct ) ) ) {
     188           0 :     return FD_EXECUTOR_INSTR_ERR_EXECUTABLE_MODIFIED;
     189           0 :   }
     190             : 
     191             :   /* And only if the account is writable
     192             :      https://github.com/anza-xyz/agave/blob/v2.1.14/sdk/src/transaction_context.rs#L1015 */
     193           0 :   if( FD_UNLIKELY( !fd_borrowed_account_is_writable( borrowed_acct ) ) ) {
     194           0 :     return FD_EXECUTOR_INSTR_ERR_EXECUTABLE_MODIFIED;
     195           0 :   }
     196             : 
     197             :   /* One can not clear the executable flag
     198             :      https://github.com/anza-xyz/agave/blob/v2.1.14/sdk/src/transaction_context.rs#L1019 */
     199           0 :   if( FD_UNLIKELY( fd_borrowed_account_is_executable_internal( borrowed_acct ) && !is_executable ) ) {
     200           0 :     return FD_EXECUTOR_INSTR_ERR_EXECUTABLE_MODIFIED;
     201           0 :   }
     202             : 
     203             :   /* Don't copy the account if the exectuable flag does not change
     204             :      https://github.com/anza-xyz/agave/blob/v2.1.14/sdk/src/transaction_context.rs#L1023 */
     205           0 :   if( fd_borrowed_account_is_executable( borrowed_acct ) == is_executable ) {
     206           0 :     return FD_EXECUTOR_INSTR_SUCCESS;
     207           0 :   }
     208             : 
     209             :   /* Agave self.touch() is a no-op */
     210             : 
     211             :   /* https://github.com/anza-xyz/agave/blob/v2.1.14/sdk/src/transaction_context.rs#L1027 */
     212           0 :   fd_txn_account_set_executable( acct, is_executable );
     213             : 
     214           0 :   return FD_EXECUTOR_INSTR_SUCCESS;
     215           0 : }
     216             : 
     217             : int
     218             : fd_borrowed_account_update_accounts_resize_delta( fd_borrowed_account_t * borrowed_acct,
     219             :                                                   ulong                   new_len,
     220           0 :                                                   int *                   err ) {
     221           0 :   fd_exec_instr_ctx_t const * instr_ctx  = borrowed_acct->instr_ctx;
     222           0 :   fd_txn_account_t *          acct       = borrowed_acct->acct;
     223           0 :   ulong                       size_delta = fd_ulong_sat_sub( new_len, acct->const_meta->dlen );
     224             : 
     225             :   /* TODO: The size delta should never exceed the value of ULONG_MAX so this
     226             :      could be replaced with a normal addition. However to match execution with
     227             :      the agave client, this is being left as a sat add */
     228           0 :   instr_ctx->txn_ctx->accounts_resize_delta = fd_ulong_sat_add( instr_ctx->txn_ctx->accounts_resize_delta, size_delta );
     229           0 :   *err = FD_EXECUTOR_INSTR_SUCCESS;
     230           0 :   return 1;
     231           0 : }